Home / 132,829.20-199,243.80-70,621.20

Finding the Fourth Proportional to 132,829.20, 199,243.80 and 70,621.20

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Solution

The fourth proportional to 132,829.20, 199,243.80 and 70,621.20 is: 105,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,829.20 : 199,243.80 = 70,621.20 : x
  2. Step 2: Convert to fraction form
    132,829.20/199,243.80 = 70,621.20/x
  3. Step 3: Cross multiply
    132,829.20x = 199,243.80 × 70,621.20
  4. Step 4: Simplify right side
    132,829.20x = 14,070,836,248.56
  5. Step 5: Solve for x
    x = 14,070,836,248.56/132,829.20
  6. Step 6: Final answer
    x = 105,931.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.